ET RETIRED TA453 IIS Credential Stealer Module/Backdoor Headers in HTTP Request

Query · suricata

flow:established,to_server;
http.header;
content:"X-Beserver-Pd|3a 20|"; fast_pattern;
content:"X-Verify-Request|3a 20|";
target:dest_ip;
Raw source ET RETIRED TA453 IIS Credential Stealer Module/Backdoor Headers in HTTP Request · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> $HOME_NET any (
    msg:"ET RETIRED TA453 IIS Credential Stealer Module/Backdoor Headers in HTTP Request";
    flow:established,to_server;
    http.header;
    content:"X-Beserver-Pd|3a 20|"; fast_pattern;
    content:"X-Verify-Request|3a 20|";
    reference:url,www.bitdefender.com/blog/businessinsights/unpacking-bellaciao-a-closer-look-at-irans-latest-malware/;
    reference:md5,95c6fdc4f537bccca3079d94e65bc0b0;
    classtype:trojan-activity;
    sid:2045223; rev:2;
    metadata:affected_product Microsoft_IIS, attack_target Web_Server, created_at 2023_04_27, deployment Perimeter, deployment Internal, deployment SSLDecrypt, former_category MALWARE, malware_family TA453, performance_impact Low, confidence High, signature_severity Major, updated_at 2025_04_17, reviewed_at 2025_04_17;
    target:dest_ip;
)

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